Throughout these nightmares, the player sees [[Flashback Happy Game was mentioned as an upcoming project of Amanita Design in an interview by Lukáš Kunce in March 2018.

[4] Kunce stated it will be similar to Botanicula and Chuchel but darker.

The game is designed by Jaromír Plachý, creator of Botanicula and Chuchel, while the soundtrack is composed by the band DVA.

[5][6] The game was officially announced on December 15, 2020 during a Nintendo Indie World presentation[7] and it was scheduled to release in Fall 2021.

Review outlets praised the title's art style, score, sound design, and themes, and criticized the unengaging puzzles and clumsy controls.